brown



l htmwo P. BROWN DECD.

M. 1. BROWN. EXECUTRIX.

DRAFT RIGGING.

APPLICATION FILED FEB. 10. 19I6.

Patented Nov. 11, 1919.

4 SHEETS-SHEET l.

P. BROWN, DECD.

M BROWN EXECUTRIX- DRAFT meme.

' APPLLCATION FILED FEB-10,1916- LSQL'? 12., Patented Nov. 11, 1919.

4 SHEETS SHEET 2.

an ucmtox P. BROWN DECD.

M. 1. BROWN. EXECUTRIX.

DRAFT HIGGINS.

v APPLICATION FILED FEB. 10. 1916. V Y 1,321,712. Patented 1w. 11,1919.

P. BROWN, DECD.

M. 1. BROWN. EXECUTRIX.

DRAFT HIGGING.

APPLICATION FILED FEB.10,1916. 1,321,712. I Patentvd Nov. 11, 1919.

PIER-FLY BRUWN, GURAUPULIS, PENNYLVANIA; MARGARET J. IERQWN EXEGUILRIX F SAID FERRY BRO W'H, DECEASED.

DRdFTJhtIGGING.

neat-lai specification of Letters Patent.

Patented Nov. it, 11919.

Application tiled February to, wild. Serial Ito. 77,563.

The invention is shown in its preferable embodiment in the drawings accompanying and forming part hereof and will now be described and then claimed.

In the aforesaid drawings:

Figure 1 is a perspective view of a draft rigging made in accordance with my invention.

Fig, 2 is a perspective view of one of the parts thereof.

F ig; 3 is a vertical central section.

Fig. at is a transverse section taken through the line 3-3 of Fig; 3.

Fig. 5 is a horizontal section through the entire rigging.

Fig, 6 is a perspective of the front end of the spring-box, with parts detached.

Figs. 7 and 8 are sections of modified forms,

Referring now to the details of the drawings by numerals: 1 designates part of the end sill which may be of the ordinary or any; desired construction to which is preferably riveted a striking plate 2 which supports the carry iron 5 upon which rides the draw bar 6. To the end sill 1 may be connected the usual intermediate sills although, instead of the ordinary rolled sills, I prefer to use intermediate-sills of the shape shown in the drawings. These sills are numbered 7 and 8 and arepreferably formed with interior and exterior lugs 10 and 12, Between the exterior lugs 10 are preferably secured friction plates 14 and 16 and on the interior of the intermediate sill 7 is secured a friction plate 18, the friction plates 1% and 18 and the sill 7 preferably being all riveted together by the same rivets. On the intermediate sill S is secured the casting 20 the use of which will be more fully referred to'herein after. In the preferred embodiment of my invention thc'intermediate sills 7 and 8. the friction plates 14, 16 and 18 and the casting 20 are provided with two sets of alined slots 22, 23, 2t and .25 through which are designed to pass heavy carry bolts 26 and 28 which, as will be hereinafter explained, perform the double function of supporting the weight of the bar and preventing the sills from spreading. While I do not limit my invention to the use of large heavy bolts, the use of round bolts in. lieu of flat bars makes it possible for the bolts to roll slightly as they move back and forth in the slots 20 to instead of sliding flatwise thereon and thereby greatly increasing the wear. The cushioning elements of the rigging are supported by aspring box 30 which in its preferred construction is long enough to provide, a

fill

socket for the shank of the draw bar, to

contain the horizontal spring elements and toalso contain the longitudinal spring elements. The front end of this spring box is provided with a recess 31 to receive the shouldered shank 33 of the draw bar 6-and after this shouldered" shank is placed in position, a narrow fiat bar 34 is inserted in the socket through a horizontal recess 34 until it comes opposite recesses 34 when it is moved upwardly into said recesses. Then a locking key or plate 35, shown in perspective view in Fig. 6, is inserted in the recess'3 l and this plate fits under the narrow flat bar 34 and retains it in the recesses 3 thereby looking it in the position shown in the sectional view, Fig. 3. A cotter or other securing device 35 may then be inserted through a lug 35 on the key or plate 35 and through a similar lug 31 projecting from the bottom of the spring box,

To the rear of the socket 31 of the spring box is formed an opening 36 to receive horizontally disposed sets of springs 38 and 40, this opening 36 having a. horizontal strengthening rib 42 shown in Figs. 3, 5 and 7. The sides of this spring box are preferably closed by means of a flanged plate like that shown at 44 in Fig. 5, or like that shown at 46 in Fig. 4, the first of these having a flange 48 extending entirely around the same and having vertical frictional elements 58 and 60 shown in Fig. 2. The latter are designed to co-act with frictional surfaces 62, 64, 66 and 68 formed on the casting 20 hereinbefore referred to. The rear end of the spring box is preferably formed with two vertical walls 70 and 72 (Fig. 3) between which are located the longitudinally disposed springs to in addition to passing through the slots 22 to 25 and through the springs 38 and 40 and the spring box, etc., also pass through two exterior friction plates 90 and -92, each of these friction plates having integral bosses 94 to afford a better support for said bolts. 0

In the modified form shown in Fig. 7, the spring box is substantially identical with that shown in the other figures except that one side (80) of the spring box is cast integral with the rest of the construction, and, if preferred, it may be provided with a friction plate 82 preferably riveted thereto. When this form of spring box is. employed, the box is inclosed on all sides by an integral structure, except for the one side which is closed by the casting 52. Otherwise the construction shown in this figure is the same as that in the other figures.

In the modification shown in Fig. 8, I not onl form one side of the spring box integra Iy with the rest of the box, as in Fig. 8, but I make the spring box separate from the socket for the draw bar, the spring box having a dove-tail recess 84 into which fits the dove-tail end 86 of the socket 88, the other end of the socket 88 being precisely like that shown in the rest of the figures and shown in perspective view in Fig. 6.

In the operation of myrigging, on an impact the draw bar, seated firmly in the socket of the spring box, moves said spring box to the rear as we look at the rigging illustrated in Figs. 1 and 5,- and has, when made in accordance with the Master Car Builders lines, a, movement of about three inches. For about one-third of this movement the whole rigging, including the spring box, the transversely arranged springs and the two heavy bolts 26 and 28, move to the rear without in any way affecting the transversely arranged springs 38 and 40. In other words, the first one-third of the rearward movement effects only a compression remade of the rear set ofsprings 74 as the wall 70 of the-spring box presses the front follower 7 6 against said spring 74. By the time the spring box has been moved to the rear for one-third of its complete, movement, the frictional surfaces 58 and 60 on the casting 52 have been moved to contact with the frictional surfaces 64 and 68 formed on the casting 20. Movement of the spring box from this point on will therefore compress all the springs, the spring 74 bein compressed between the two followers 6 and 82 while the two sets of springs 38 and 40 are compressed by the transverse movement of the casting 52 as its inclined frictional surfaces ride upon the aforesaid frictional surfaces 64 and 68 of the casting 20. Furthermore, owing, to the fact that all three sets of the springs are arranged so that the inner spring is affected in advance of the outer spring, it will be seen that I have provided a. rigging wherein there is a gradually increased resistance toany impact given to the draw bar. In other words during the first inch of inward movement of the spring box, only the inside spring 74 is being compressed, but as soon as the follower 7 6 moves to the rear sufficiently to bear against the outer spring 74, the shock is absorbed by both of said springs. At this same time the two inner springs 38 and 40 are being compressed by the inward movement of the casting 52, the outer springs 38 and 40 not being affected until said casting 52 has been moved about one-third of its travel. For the remaining two-thirds of the travel of the casting 52, the full capacity ofall the springs is being utilized. Assuming that the parts are in normal position, on a pull, the spring box draws upon the rear follower 82 and compresses the springs 74 against the front follower 76 which is held from for ward movement by the abut-ments 78 and 80. As soon as the casting 52 has been moved with its bolts 26 and 28 until its inclined surfaces contact with the inclined surfaces 62 and 66, the said casting 52 will be moved inward and the transverse springs compressed in a manner readily understood.

I desire to call particular attention to the fact that in addition to the load absorbed by the springs Maud the friction obtained by the riding of the inclined surfaces of the casting 52 upon the inclined surfaces of the casting 20, I also obtain considerable friction at the point where the flanges of the casting 52 ride inward against the interior walls of the spring box. Furthermore I obtain considerable friction between the outer surface of the friction plate 4% and the inner surface of the friction plate 18. And in addition to this I have provided the friction plates 90 and 92 which, in traveling back and forth with the heavy bolts 26 and 28, move against the resistance of the fric- Kill tional plates 14 and 16. Of course any tendency of the sills 7 and 8 to spread in absorbing the resistance from the transverse springs 38 and 40 would only increase the friction between the friction plates 90 and 92 and the friction plates 14 and 16.

From the foregoing. and accompanying drawings it will be seen that I have provided a rigging of great capacity which will absorb the tremendous shocks given in modern railway practice and which will be unlikely to get. out of order.

While I have illustrated what I consider the preferable embodiment of my invention, I do not limit myself to the exact construction shown. It will be obvious to any one skilled in the art that it would not be necessary to use two sets of springs 38 and 40 and that it would be within the scope of my invention to use more than one set of springs 74. Likewise, it would be within the scope ofmy invention to use the transverse springs with the transversely sliding. frictional block without necessarily employing the longitudinally arranged springs 74 and it will likewise be evident that instead of leaving a space between the frictional surfaces on the block. 52 and the frictional surfaces on the casting 20, these frictional surfaces could be nearer together or in fact be in contact in a position of rest.

'Ihese and other modifications may be made without departing from the spirit of my invention, the scope of which is set forth by the appended claims.

What I claim as my invention is:

1. In a draft rigging and in combination with a pair of longitudinal sills and the shock absorbing elements, friction plates bearing on the exterior sides of the sills and sliding back and forth against said sills, and said shock absorbing elements being located between said longitudinal sills and arranged to hold said plates frictionally against the exterior sides of said sills.

2. In a draft rigging and in combination with the sills and the shock. absorbing elements, said sills having friction plates thereon, and friction plates bearing on opposite sides of the plates on said sills and sliding back and forth against the same.

3. In a draft rigging and in combination with the sills and draw bar, shock absorbing elements, friction plates supported by said sills, a supporting member for the shock absorbing elements extending from sill to sill and passing through the sills, and friction plates supported by said supporting memher and sliding back and forth against the plates on said sills.

t. In a draft rigging and in combination with the draw bar and with slotted sills, shock absorbing elements, friction plates supported by said sills, a bolt passing through said shock absorbing elements and supporting the same and resting in the slots in said sills, and friction plates supported by said bolt and movable therewith against the friction plates carried by the sills.

5. In a draft rigging and in combination with the draw bar and with slotted sills, a spring box connected with said draw bar, springs supported by said box transversely of the same, frictional elements arranged to compress said springs as the draw bar and spring box are moved back and forth, supporting members passing through said springs and spring box and through the slots in said sills, friction plates supported by said sills, and friction plates supported by and movable with said supporting means and contacting with the friction plates on said sills, whereby as the draw bar and the spring box are movable back and forth with said supporting members, the friction plates on the supporting members create friction against the friction plates on said sills.

6. In a draftrigging and in combination with the draw bar and with slot-ted sills, a spring box connected with said draw bar, springs supported by said box transversely of the same, frictional elements supported on the interior of one of said sills, frictional elements movable with said spring box against the frictional elements on the sill to compress said springs as the draw bar and spring box are moved back and forth, supporting members passing through said springs and spring box and through the slots in said sills, friction plates supported by said sills and friction plates supported by and movable with said supporting means and contacting with the friction plates on said sills, whereby as the draw bar and the spring box are movable back and forth with said supporting members, the friction plates on the supporting members create friction against the friction plates on said sills.

7. In a draft rigging and in combination with the draw bar and sills, a spring box having a socket to receive the shank of the draw bar and formed with front and rear compartments, transversely arranged springs located in the front compartment and longitudinally arranged springs in the rear compartment.

8. In a draft rigging and in combination with the draw bar and sills, a spring box formed of one piece having a socket to receive the shank of the draw bar and front and rear compartments behind said socket, transversely arranged springs located in the front compartment in the rear of said socket and longitudinally arranged springs in the said rear compartment.

9. In a draft rigging and in combination with the draw bar and with slotted sills, a spring box connected with said draw bar, springs supported on said box transversely of the same, frictional elements arranged to compress said springs as the draw bar is moved back and forth, a supporting member passing through said'springs and spring box and through the slots in said sills, friction plates carried by said sills, and friction plates supported by and movable with said supporting member and contacting with friction plates on said sills.

10. In a draft rigging and in combination with the draw bar and sills, the latter being slotted, a spring box connected with said draw bar and having a passage extending transversely of the same, transversely arranged springs within said box, one of said sills having frictional elements projecting from its inner wall, and means co-acting with the springs in said box and pressed laterally outward by said springs against the frictional elements on said sill, and a supporting member passing through the slotted sills, through the aforesaid springs and through the aforesaid member having frictional elements.

11. In a draft rigging and in combination with the draw bar and sills, a spring box connected with said draw bar and having a passage extending transversely of the same, transversely arranged springs within said box, one vof said sills having frictional elements projecting from its inner wall, and a member co-acting with the springs in said box and pressed laterally outward by said springs and having frictional element-s coacting with the frictional elements on said sill to move said member against the springs to compress the same. L

12. In a draft-rigging and in combination with the draw bar and sills, a spring box connected with said draw bar and having a, passage extending transversely of the same, springs within said box, one of said sills having frictional elements projecting from its inner wall, a member co-acting with the spr'ingsin said box and having frictional elements'co-acting with the frictional elements on said sill to move said member against the springs to compress the same, longitudinally disposed springs in the end of said spring box, and followers projecting through said spring box on opposite sides of said springs and co-acting with abutments on the sills.

13. In a draft rigging and in combination with the draw bar and sills, a spring box connectedwith said draw bar and having a passage extending transversely of the same, transversely arranged springs within said box, one of said 'sills havin'g'frictional elements projecting from its inner wall, and a member movable backand forth with said spring box and draw bar and pressed laterally outward by said springs and having frictional elements c'oacting with the frictional elements on said sill, whereby as said member is moved back and forth with the spring box the frictional elements ride upon the frictional elements on said sills and move the same inward against the springs to compress the same.

14. ,In a draft rigging and in combination with the draw bar and sills, a spring box connected with said draw bar and having a passage extending transversely of the same, springs within said box, one of said sills having frictional elements projecting from its inner wall, a member movable back and forth with'said spring box and draw bar and having frictional elements, co-acting with the frictional elements on said sill, whereby as said member is moved back and forth with the spring box the frictional elements ride upon the frictional elements on said sills and move the same inward against the springs to compress the same, longitudinally disposed springs in the endof said spring box, and followers projecting through said spring box on opposite sides of said springs and co-acting with abutments on the sills.

15. In a draft rigging-and in combina- -tion with the draw bar and sills, one of said sills being provided with frictional elements projecting from the interior side thereof, a device projecting rearwardly from said draw bar and movable back and forth therewith, springs within said device arranged transversely thereof, and a plate movable longitudinally of the sills with said draw bar and said device and having frictional surfaces co-acting with the frictional surfaces projecting from the aforesaid sills, whereby as said draw bar, its

spring containing device and said plate move back and forth said plate rides upori said frictional elements and is moved transversely of the rigging to compress the .said sills being provided with frictional elements projecting from the interior side thereof, a spring box movable with said draw bar and having springs arranged transversely thereof, a platel movable longitudinally of the sills as said draw bar and spring box move back and forth and also having frictional surfaces co-acting with the frictional surfaces projecting from the aforesaid sill whereby as said plate moves back and forth with the draw bar and spring box it rides upon said frictional surfaces and moves transversely of the rigging to compress the springs in said box, and supporting devices passing through said transverse springs and movable back and forth in said slotted sills.

17. In a draft rigging and in combination with the draw bar and slotted sills, one of said sills being provided with frictional elements projecting from the interior side thereof, a spring box movable with said aforesaid springs through the slots in said.

sills and into said plates whereby said supporting devices move in the slots in the sills as the whole rigging and said plates move back and forth.

18. In a draft rigging and in combination with the draw bar and slotted sills, one

of said sills being provided with frictional.

elements projecting from the interior side thereof, a spring supporting member projecting from said draw bar and movable back and forth therewith, springs arranged transversely of said supporting member, a plate movable back and forth with said supporting member and having frictional elements arranged to ride upon the frictional elements of said sill whereby said plate is movable inward to compress the springs, supporting members passing through said springs, its supporting device and the slots in said sills, and frictional plates carried by said supporting means and sliding against the exterior sides of the sills as said draw bar and its attached members move back and forth with said supporting devices.

19. In a draft rigging and in combination with the draw bar and sills, one of said sills being provided with frictional elements projecting from the interior wall thereof, aspring box movable with said draw bar and having springs arranged transversely thereof, and a member movable longitudinally of the sills with said draw bar and spring box and pressed laterally outward by said springs and having frictional surfaces co-acting with the frictional surfaces projecting from the aforesaid sill, whereby as said member moves back and forth with said draw bar and spring box it rides upon said frictional surfaces and moves transversely of the rigging to compress the springs in said box, and said plate having its end surfaces contactingwith the interior walls of said box whereby friction is created as said plate moves transversely with respect to the box.

20. In a draft rigging and in combination with the draw bar and sills, a spring box having a pocket, transversely arranged springs located in said pocket, one of said sills having frictional elements projecting from the interior thereof, a plate carried by said spring box and having frictional elements co-acting with the frictional elements on said sill, a friction plate secured to the inner side of the opposite sill, frictional plates on the exterior sides of both sills, said sills and said frictional plates having alined slots therein, supporting devices passing through the slots in said sills and friction plates and supporting the spring box and said transversely arranged springs, and frictional plates supported on the ends of said supporting devices and sliding therewith against the frictional plates on the exterior sides of the sills.

21. In a draft rigging and in combination with the draw bar and sills, a supporting member movable with said draw bar and having an opening to receive transverse springs and a second openin to receive longitudinal springs, one of said sills having frictional elements thereon, transverse springs in said supporting member, a plate carried by said supporting member and having frictional elements co-acting with the frictional elements carried by said sill, longitudinal springs also carried by said supporting member, followers projecting through said supporting member on opposite sides of said longitudinal springs and co-acting with abutments on the sills, the aforesaid frictional elements having a space between them whereby the draw bar and its supporting member are first moved backward against the tension of the longitudinal sills before the frictional elements ride upon 190 each other to compress the transversely arranged springs.

22. In a draft rigging and in combination with the draw bar and sills, a spring box formed of a single casting and having a socket to receive the shank 'of the draw bar and front and rear compartments behind said socket, transversely arranged springs in said front compartment, a friction plate pressed laterally outward by said springs, and longitudinally cushioning elements located in the said rear con'ipartinent.

23. In a draft rigging and in combination with the draw bar and sills, the latter having frictional elements thereon, a spring box 5 formed of a single casting and having a socket to receive the shank of the draw bar and front and rear compartments behind said socket, transversely arranged springs in said front compartment, a plate pressed laterally outward by said transverse springs against the frictional elements of said sills, and longitudinal cushioning elements located in the said rear compartment.

24. In a draft rigging and in combination with the draw bar and sills, a spring box formed of a single casting and having a socket toreceive the shank of the draw bar.

a compartment behind said socket open on both sides, transverse cushioning elements in said socket, plates on opposite sides of said compartment to inclose said transverse cushioning elements, and said spring box also having a second compartment behind said first compartment, and longitudinal cushioning elements located in said second compartment.

25. In a draft rigging and in combination with the draw bar and sills, a spring box formed of a single casting having a socket to receive the shank of the draw bar, and a compartment behind said socket open on both sides, said sills being provided with frictional elements, transverse springs within said compartment, plates on opposite sides of said compartment inclosing said springs, one of said plates having frictional elements constructed and arranged to ride upon the a frictional elements on said sill to compress the springs in said compartment as the spring box and its plates are moved with respect to the sills.

26. In a draft rigging and in combination with the draw bar and sills, a spring box formed of a single casting having a socket to receive the shank of the draw bar, a compartment behind said socket open on'both sides and walls behind said compartment, said sills being provided with frictional elements, transverse springs within said compartment, plates on opposite sides of said compartment inclosing said springs, one of said plates having frictional elements constructed and arranged to ride upon the frictionalelements on said sill to compress the springs'in said compartment as the spring box and its plates move with respect to the sills, longitudinally disposed springs beformed of a single casting having a socket to receive the shank of the draw bar, a

compartment behind said socket open on both sides and walls behind said compart ment, said sills being provided with frictional elements, transverse springs within said compartment, plates on opposite sides of said compartment inclosing said springs, one of said plates having frictional elements constructed and arranged to'ride upon the frictional elements on said sill to compress the springs in said compartment as the spring box and its plates move with respect to the sills, longitudinally-disposed springs between said walls at the, rear of said compartment, and followers on opposite sides of said longitudinal springs co-acting with abutments on said sills, the frictional elements on said plate normally having a space between them and the frictional elements' on the sill, whereby the initial movement of the draw bar, spring box, etc., first compresses the longitudinal s rin only and afterward the horizontal y isposed springs.

In testimony whereof, I affixmy signature in presence of two witnesses.

PERRY BROWN.

Witnesses:

JOHN L. Fm'ronnn, THOMAS E. ROBERTSON. 

